Knowledge base for software setup, errors, and daily tool work.

Fix Windows Activation Error 504 on VPN Connection

If you see error 504 when trying to activate Windows while connected to a VPN, it usually means t...

Fix OBS Black Screen with No Source Detected

If you're seeing a black screen in OBS and the message 'No source detected,' you're not alone. Th...

Fix Windows Terminal Stuck on Splash Screen

Windows Terminal opens to a splash screen and then hangs—no cursor, no tabs, just the logo. This ...

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

How to Find Which Process Is Locking a File in Windows

You try to delete, rename, or move a file in Windows, and you get an error like "The action can't...

How to Reduce Task Scheduler Memory Usage

If you notice high memory usage by Task Scheduler (file: svchost.exe hosting T...